Chair having adjustable back rest, footrest, armrest, and tray



1952 v I s. R. ZlV 2,606,596

CHAIR HAVING ADJUSTABLE BACK 'REST FOOTREST, ARMREST, AND TRAY Filed Nov. '10, 1947 3 Sheets-Sheet 1 IZJIIIIIIIIIIMIIIA INVENTOI-Q. $E'YMOUR R 21V Aug. 12, 1952 s. R. ZIV

CHAIR HAVING ADJUSTABLE BACK REST, FOO' IREST, ARMRES T, AND TRAY Filed Nov. 10, 1.947

5 Sheets-Sheet 2 INVEN TOR.

SEYMQURA R. Z/V

s. R. ZlV 2,606,596

CHAIR HAVING ADJUSTABLE BAGK REST, FOOTREST, ARMREST, AND TRAY Aug. 12, 1952 3 Sheets-Sheet 5 Filed Nov.. 10, 1947 I ll FIG. 8.

" INVENTOR.

SEYMOUR R. z/v. 7W 6 ATTORNEY Patented Aug. 12, 1952 UNITED STATES PATENT orFlcE CHAIR HAVING ADJUSTABLE BAGK REST, v FOOTREST, ARMREST, AND TRAY Seymour R. Ziv, Baltimore, Md.

Application November 10, 1947, Serial No. 784,982

8 Claims. 1

This invention relates to furniture and more particularly to chairs for use of infants or small children.

It is an object of this invention to provide a new and improved chair for infants that will avoid one or more of the disadvantages and limitations of the prior art.

Another object of this invention is to provide a new and improved chair for use by an infant that will be adjustable to his size and to suit his convenience.

A further object of this invention is to provide a new and improved chair for use by an infant that may be adjusted easily and quickly without requiring much effort on the part of the operator.

A further object of this invention is to provide a new and improved chair for use by an infant that can be adjusted as to the width of the chair seat and the height of the arms and tray above said seat independent of the adjustment as to length or depth of said seat.

A further object of this invention is to provide a new and improved chair that can be adjusted in width andlength of seat and height of the arms and tray proportionally to each other in an automatic manner.

Other objects will become apparent as the invention is more fully set forth.

For a better understanding of the invention references are made to the appended drawings, and the following description, which outlines two particular forms of the invention by wayof example, while the scope of the invention is particularly emphasized in the claims.

Referring to the drawings:

Figure l is a plan view of a chair for an infant, embodying this invention;

Figure 2 is a front view of Figure 1;

Figure 3'is a side elevation of Figure 1, nortions being in dotted outline to indicate its adjustability;

Figure 4 is a partial view looking in the direction of the arrows 4-14 shown in Figure 1: I

Figure 5 is a sectional view taken along line 5--5 of Figure l; V

Figure 6 is a sectional view taken along line 6-6 of Figure 4; t

Figure '7 is a sectional view taken along line i-Tof Figure 4;

Figure 8 is a side elevation of a modified form of a chair for an infant;

Figure 9 is a front view of Figure 8;

Figure 10 is a sectional plan view taken along line ill-l0 of Figure 8, of the modified chair;

Figure 11 is a sectional view taken along line H--ll of Figure 10, and

Figure 12 is a sectional view taken along line l2-l2 of Figure l0.

Similar reference characters refer to similar parts throughout the drawings.

, In the structure shown in Figure 3 an infantschair consists of a seat on which a child may be seated, so that his legs from the knees down will extend downwards and bring his feet to contact the foot rest 2!. made from wood or plasticand is supported on four chair legs 23 off the floor. Braces 24 hold and strengthen the legs 23. The foot rest 2| is adjustably secured to brackets 25;fastened'to the underside of the seat 20. Thisarrangement enables the foot rest to be adjustedto suit the length of the babys legs in front. Under the 'seat 29 is a horizontal adjusting screw26 supported at either end in journals 21, which are-secured by screws to the underside of the seat. A wheel handle 28 is used to operate the screw 26 and extends out beyond the seat 26- at the rear of the chair in a convenient position. The screw 26 is 1 screw-threaded throughout the greater part of its length and remains in the same position throughout its operation, so that'it may'rotate on its axis. Towards the rearof the seat'is a floating bar 23 which extends't'ransversely under the seat 26 and rigidly holds the' 'side'arms 30 in their upright position. The securing 'of the screw 26 in a nut 3|, in the bar 23 moves theside supports 30, to the front-orback of the seat, as the case may be. In moving to the front or back of the seat, the supports 30, carry the back plate 32 with them. This back plate 32 is pushed against the back of theinfant and is slightly tilted as indicated to suit the posture-of the child. It is brought towards the front of the chair so the childs legs and feet will r est' conveniently in front. Arms 33 are attached at their front ends to hinge member 34 pivoted on base members 35 attached to the base 20. The rear portions of the arms 33 extend through elongated slots 36 in the back plate to raise and lower it from the base when the arms 33 are adjusted to suit the width and. height of the child, by mechanism consisting of a double ended bolt 3'3 having a left hand thread at oneend and a right hand thread at the other end. The bolt is rotated by a knurled wheel 38. The double ended bolt threads actuate in nuts 39 fastened in plates 48 and move the plates back and'forth in a direction to move the arms 33 sufficiently to suit the width and height of the child to be placed on The seat 20' is preferably the seat 20. The plates 40 are provided with holes 4| through which the arms 33 project. The front ends of the arms 33 support a tray 42 in front of the child so he can eat therefrom, while at the same time the tray prevents him from falling from the chair. The tray 42 is pivotally attached to the back plate 32 by members 43, which are connected by brackets I to the tray and it moves back and forth with the members 43 as the back plate 32 is moved through the rotation of the screw 26. The plates 40 are placed in recesses 44 and held in sliding relationship by plates 45 secured to back plate 32. The double end bolt is supported at its center portion by brackets 46 attached to the back plate 32 and it moves therewith.

In Figure 8 the modified chair is similar in general to the previous construction already described. The seat I20 is supported by plates I I9 attached to legs I23. A foot rest I2! is attached to the front plate H9, and is adjustable thereon. Under the seat I20 is a horizontal adjusting screw I26 supported in journals I21 which'are secured to the brackets II9. A wheel handle I 28 is used to operate the screw I26 and extends out beyond the seat I20 at the rear of the chair in a convenient position. Under the seat is positioned a floating bar I29 which extends transversely under the seat I20 and rigidly holds the side arms I30 in their upright position. The screw I26 is provided with right and left hand threads with the rear threaded portion operating a nut I3I attached to the floating bar I29 by an arm I40 to move the side supports I30 to the front or back of the seat as required. A back plate I32 is slidably positioned in the slottedportion of the side arms I 30 and is raised and lowered by arms I33 which are fixed to and supported on pins I34 attached to glider bars I35 which slide in angularly positioned slots I36 in plates I I9 through the action of links I31 pivoted to the gliders and to nuts I3I and I38. The arms I33 extend through elongated slots I39 in the back plate I32, to move said back plate.

In the operation of the device shown in Figure 8, the wheel I28 is turned to rotate the screw I28 and in turn move the nuts I3I and I38 towards and away from the longitudinal center of the screw I26. When the nut I3I moves toward the center it moves the side arms I30 and back plate with it towards the front of the seat I20. As the back plate moves forward to shorten the length of the seat I20 the nuts I3I and I38 attached to the links I31 draw on the gliders I35 and through the pins I 34 lower and move the arms I33 towards the center of the chair to reduce the spacing between the arms and their height above the seat I20 to suit children of different ages and their different body sizes. When this occurs the tray I 42 attached to the back plate I32 by members I43 is raised and lowered. The foot rest I2I is adjusted to suit the length of the childs legs.

The operation of the chair shown in Figure 3, is somewhat similar. The wheel 28 is turned to rotate the screw 26 which is anchored at one end by a journal 2! attached to the seat 20 of the chair and as the screw 26 is rotated the nut 3| attached to the supports 30 moves it and the back plate 32 frontward and backward to lengthen and shorten the seat portion 20. The knurled wheel 38 rotates the screw threaded portions 3? which operate in nuts positioned in plates 40 and causes the plates 40 to move transversely towards and away from the center to raise and lower the arms 33 as Well as move them in and out.

As the arms move upward they in turn raise the back plate 32 proportionately.

As the arms are raised and lowered they move members 34 which are hinged on the base members 35.

The foot rest 2| attached to the bracket 25 is adjusted to suit the length of the legs of the child using the chair. I

While but two general forms of the invention are shown in the drawings and described in the specification it is not desired to limit this application for patent to these particular forms or in any other way otherwise than limited by the scope of the claims, as it is appreciated that other forms could be made that would use the same principles and come within the scope of the appended claims.

Having thus described the invention, what is claimed is:

1. A chair of the class described comprising in combination, a seat, supporting legs secured to said seat, a back plate moveable forwardly and rearwardly on the seat for engaging the back of the user of the seat and'to keep his legs pending downwardly in front of the chair, means for adjusting the position of the back plate to suit the size of the user, arms on the chair for encompassing the user on either side of him and a tray mounted on said arms for placement in front of the user, and means connected with the back plate for changing the positions of the arms to conform with the Width of the user.

2. A chair of the class described comprising in combination, a seat, supporting legs secured to said seat, a back plate moveable forwardly and rearwardly on the seat for engaging the back of the user of the seat and to keep his legs pending downwardly in front of the chair, means for adjusting the position of the back plate to suit the size of the user, arms on the chair for encompassing the user on either side of him and a tray mounted on said arms for placement in front of the user, means for changing the positions of the arms to conform with the Width of the user, and an adjustable foot rest in front of the chair fastened to the seat for the user to rest his feet thereon.

3. A chair of the class described comprising in combination, a seat, supporting legs secured to said seat, a back plate moveable forwardly, rearwardly and up and down on the seat for engaging the back of the infant using the chair and to keep his legs pending downwardly in front of the chair, means for adjusting the position of the back plate to suit the size of the infant, arms on the chair for encompassing the sides of the infant, a tray mounted on said arms in front of the infant, members pivotally connecting the tray to said back plate, and means connected with the back plate for changing the positions of the arms and tray to conform with the width and height of the infant.

4. A chair of the class described comprising in combination a seat, supporting legs secured to said seat, a back plate moveable forwardly, rearwardly and increased or lessened in height on the seat for engaging the back of the infant using the seat and to keep his legs pending downwardly in front of the chair, means for adjusting the position of the back plate to suit the size of the infant, arms on the chair for encompassing the sides of an infant, a tray having brackets positioned on said arms in front of the infant, members pivotally connected to saidback plate at the rear end with the front ends formed to slide into and out of said tray brackets for. adjustment of the tray on the arms, and means connected with the back plate for changing the positions of the arms and tray to conform with the width and height of the infant, said tray remaining in a horizontal position as the arms rise and fall.

5. A chair of the class described comprising in combination, a seat, supporting legs secured to said seat, a back plate movable forwardly and rearwardly on the seat for engaging the back of the user of the seat and to permit his legs to pend downwardly in front of the chair, arms on the chair connected with the back plate for encompassing the user on either side of him and a tray lying on said arms for placement in front of the user, a foot rest in front of the chair fastened to the seat for the user to rest his feet thereon and combined means for adjusting the height of the tray above the seat, the height of and space between the arms, and the front and back position of the back plate to which the arms are connected whereby the parts are positioned to conform with the size of the user.

6. An arm chair comprising in combination a seat, supporting legs secured to said seat, a back rest movable forwardly and rearwardly on the seat for engaging the back of the user of the seat, arms on the chair for encompassing the user on either side, a tray mounted on said arms for placement in front of the user, said tray being also pivotally connected to said back rest,

and means coacting between said back rest and said arms for adjustment of said arms and tray to conform with the width and height of the 7. An arm chair comprising in combination a seat, supporting legs secured to the seat, a back rest mounted on the seat for forward and rearward and vertical movement to engage the back of the user of the seat, arms on the chair for encompassing the user on either side, a tray pivotally connected to said back rest and supported on said arms for placement in front of the user, and combined means for vertically adjusting said arms and tray and for adjusting the height and forward and rearward position of said back rest to conform with the size of the user.

8. A chair of the class described comprising in combination, a seat, supporting legs secured to said seat, a back plate on the seat for engaging the back of the user of the seat, arms on the chair which move inwardly and outwardly and upwardly and downwardly, a tray mounted on said arms and said arms being pivotally connected to the back plate and combined means for adjusting the separation of the arms and the height of the tray to conform with the size of the user.

SEYMOUR R. ZIV.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,444,024 Burdick Feb. 6, 1923 1,465,291 Walker Aug. 21, 1923 1,887,323 Perron Nov. 8, 193 2,100,597 Pickle Nov. 30, 1937 2,360,788 Murphy Oct. 17, 1944 

